Links below are to free, public Google Docs, which outline different bodyweight or minimal equipment based strength focused workouts.
MASTER LIST – Bodyweight and Object Exercise Reference. Will be updated, but let me know if you need one move in particular demo’d. There are sample circuits included as well.
Legs + Back Focused Bag Workout 1 (+duffle bag, backpack, Beginner/Intermediate)
Upper Body + Arms Focused Bag Workout 2 (+backpack, Beginner/Intermediate)